CN111629175A - Video environment monitoring system of transformer substation - Google Patents
Video environment monitoring system of transformer substation Download PDFInfo
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- CN111629175A CN111629175A CN202010288019.6A CN202010288019A CN111629175A CN 111629175 A CN111629175 A CN 111629175A CN 202010288019 A CN202010288019 A CN 202010288019A CN 111629175 A CN111629175 A CN 111629175A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
Abstract
The invention discloses a video environment monitoring system of a transformer substation, which comprises a station end processing unit, an environment data acquisition unit, a video terminal and a protocol conversion unit. And the station end processing unit is respectively connected with the environmental data acquisition unit, the video terminal, the protocol conversion unit and a main station of the transformer substation. The environmental data acquisition unit is used for transmitting the transformer substation environmental data acquired by the sensor to the station end processing unit. The video terminal is used for transmitting the collected video data of the transformer substation to the station end processing unit. And the station end processing unit is used for processing the environmental data and the video data, sending a processing result to the main station and receiving a control signal fed back by the main station. The protocol conversion unit is used for transmitting the control signal sent by the protocol conversion station end processing unit to various monitoring subsystems installed in the transformer substation; and the protocol converts the monitoring data sent by various monitoring subsystems and sends the monitoring data to the station end processing unit. The system has the advantages of high reliability, integrated linkage and convenient expansion.
Description
Technical Field
The invention relates to the technical field of intelligent monitoring of transformer substations, in particular to a transformer substation video environment monitoring system.
Background
At present, video monitoring plays an active role in the aspects of equipment state monitoring, remote video inspection, emergency command, anti-accident maneuver, various special inspections, accident analysis, safety fortification and the like of remote control operation of an unattended substation, the workload of daily operation and maintenance of the substation is greatly reduced, the production efficiency is improved, and the safety of construction operation and the like is ensured.
Most of the existing transformer substation video environment monitoring systems adopt a video processing unit as a center, the dependency on the video processing unit is very high, once the video processing unit fails, the whole system loses the function, and the problems of low reliability, incomplete linkage function, inconvenience in expansion and the like exist when a newly-added system is accessed.
Disclosure of Invention
The invention aims to provide a transformer substation video environment monitoring system, which can solve the problems that the existing transformer substation video environment monitoring system is low in reliability and incomplete in linkage function by taking a video processing unit as a center, and the expansion is inconvenient when a newly-added system is accessed.
The transformer substation video environment monitoring system provided by the embodiment of the invention comprises a station end processing unit, an environment data acquisition unit, a video terminal and a protocol conversion unit; the station end processing unit is respectively connected with the environmental data acquisition unit, the video terminal and the protocol conversion unit, and is connected with a main station of a transformer substation;
the environment data acquisition unit is connected with each sensor of the transformer substation and is used for transmitting the transformer substation environment data acquired by the sensors to the station end processing unit; the environmental data includes wind speed, temperature and humidity;
the video terminal is used for transmitting the collected video data of the transformer substation to the station end processing unit;
the station end processing unit is used for processing the environment data and the video data, sending a processing result to the master station and receiving a control signal fed back by the master station;
the protocol conversion unit is used for converting the control signals sent by the station end processing unit by protocols and sending the control signals after protocol conversion to various monitoring subsystems installed in a transformer substation; the protocol converts the monitoring data sent by the various monitoring subsystems, and sends the monitoring data after protocol conversion to the station end processing unit; the various monitoring subsystems comprise a fire alarm system, a light control system, an access control system, a heating and ventilation control system and a sulfur hexafluoride monitoring system.
In one embodiment, the station-side processing unit includes a station-side server, a main communication controller and a redundant communication controller, and the main communication controller and the redundant communication controller are both connected to the station-side server and the master station, respectively;
the main communication controller and the redundant communication controller are mutually standby, and are used for processing the environment data and the video data when in a working state, sending a processing result to the main station, receiving a control signal fed back by the main station, and switching the other one of the main communication controller and the redundant communication controller to the working state when one of the main communication controller and the redundant communication controller is in failure.
In one embodiment, the station-side processing unit is further configured to send a control signal to the video terminal after receiving the linkage information; the linkage information comprises a target linkage position, and the control signal is used for controlling the video terminal at the target linkage position to acquire video data of the target linkage position.
In one embodiment, the system further comprises a robot inspection subsystem, wherein the robot inspection subsystem is connected with the station end processing unit;
the station end processing unit is also used for sending a control signal to the robot inspection subsystem after receiving the linkage information; the linkage information comprises a target linkage position, and the control signal is used for controlling the robot inspection subsystem to drive the inspection robot to the target linkage position for inspection.
In one embodiment, the video terminal includes a plurality of network cameras and a plurality of local storage terminals, and the plurality of local storage terminals are configured to store video data collected by the corresponding plurality of network cameras.
In one embodiment, the system further comprises an audio acquisition device, wherein the audio acquisition device is connected with the network camera and is used for acquiring the audio of the environment where the network camera is located;
in one embodiment, the system further comprises an audio output device, wherein the audio acquisition device is connected with the network camera and is used for outputting audio in the environment where the network camera is located.
In one embodiment, the network camera comprises a switching value input/output interface, and the switching value input/output interface is connected with at least part of sensors in the transformer substation; the plurality of local storage terminals are also used for storing at least part of the substation environment data collected by the sensors.
In one embodiment, the various monitoring subsystems are connected with the protocol conversion unit through serial interfaces.
In one embodiment, the system further comprises an area I service and an area II service, both the area I service and the area II service are connected to the protocol conversion unit through a serial interface, and the area I service and the area II service are separated by a firewall;
the I area service comprises an I area telecontrol device and an I area acquisition device, the I area acquisition device is used for acquiring I area data and transmitting the I area data to the I area telecontrol device, the I area telecontrol device is used for transmitting the I area data to the station end processing unit through the protocol conversion unit, and the station end processing unit is used for realizing linkage with the video terminal and the inspection robot according to the I area data;
the service of the II area comprises a remote control device of the II area and a collection device of the II area, wherein the collection device of the II area is used for collecting data of the II area and sending the data to the remote control device of the II area, the remote control device of the II area is used for sending the data of the II area to the station end processing unit through the protocol conversion unit, and the station end processing unit is used for realizing the linkage of the video terminal and the inspection robot according to the data of the II area.
In one embodiment, the device further comprises a storage unit; the storage unit is respectively connected with the environmental data acquisition unit, the video terminal and the protocol conversion unit and is used for storing the environmental data, the video data and the monitoring data of various monitoring subsystems.
In the transformer substation video environment monitoring system of the embodiment, an original integrated system which integrates functions of communication control, information acquisition, protocol conversion and the like with a video processing unit as a center is divided into a station end processing unit, a data acquisition unit, a video terminal, a protocol conversion unit and the like, so that the reliability of the system is improved, and integrated linkage of various monitoring subsystems is realized; meanwhile, the station end processing unit, the data acquisition unit, the video terminal and the protocol conversion unit can be configured according to actual engineering requirements, the expansion is convenient, and the problems that the existing transformer station video environment monitoring system is low in reliability and incomplete in linkage function due to the fact that the video processing unit is used as the center, and the expansion is inconvenient when a newly-added system is accessed are solved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a substation video environment monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a substation video environment monitoring system according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a substation video environment monitoring system according to another embodiment of the present invention;
fig. 4 is a schematic diagram of polling paths of polling robots or video terminals related to polling according to linkage information according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides a substation video environment monitoring system. The system comprises a station-side processing unit 10, an environmental data acquisition unit 20, a video terminal 30 and a protocol conversion unit 40. The station-side processing unit 10 is respectively connected with the environmental data acquisition unit 20, the video terminal 30 and the protocol conversion unit 40, and is connected with a main station of a transformer substation.
The environmental data acquisition unit 20 is connected to each sensor of the substation, and is configured to transmit the environmental data of the substation acquired by the sensor to the station-side processing unit 10. Environmental data includes wind speed, temperature and humidity. The video terminal 30 is used for transmitting the collected substation video data to the station-side processing unit 10. The station-side processing unit 10 is configured to process the environment data and the video data, send a processing result to the master station, and receive a control signal fed back by the master station. The protocol conversion unit 40 is used for converting the control signal sent by the station-side processing unit 10 into a protocol, and sending the protocol-converted control signal to various monitoring subsystems 50 installed in the substation; and converting the monitoring data sent by various monitoring subsystems 50 by the protocol, and sending the monitoring data after protocol conversion to the station-side processing unit 10. The various monitoring subsystems 50 comprise a fire alarm system, a light control system, an access control system, a heating and ventilation control system and a sulfur hexafluoride monitoring system.
In this embodiment, each sensor installed in the substation, for example, an air velocity sensor, a temperature and humidity sensor, a water sensor, and the like as shown in fig. 3, acquires environmental data of the substation, and transmits the environmental data to the environmental data acquisition unit 20. The environmental data acquisition unit 20 transmits the environmental data to the station-side processing unit 10. The station-side processing unit 10 processes the environmental data and transmits a processing result of the environmental data to the substation master station. The monitoring personnel of the master station judges the processing result, inputs a corresponding control strategy to the master station, and the master station feeds back a control signal to the station end processing unit 10. After being subjected to protocol conversion by the protocol conversion unit 40, the control signals are sent to various monitoring subsystems 50 in the transformer substation, so that linkage control is performed on various monitoring subsystems 50, for example, a fire alarm system is controlled to give an alarm. Of course, the monitoring data sent by each monitoring subsystem 50 may also be sent to the station-side processing unit 10 after being subjected to protocol conversion by the protocol conversion unit 40.
In addition, the video terminal 30 is configured to collect video data of the substation and transmit the video data to the station-side processing unit 10. The station-side processing unit 10 processes the video data and sends the processing result of the video data to the substation master station. The monitoring personnel of the master station judges the processing result, inputs a corresponding control strategy to the master station, and the master station feeds back a control signal to the station end processing unit 10. After being subjected to protocol conversion by the protocol conversion unit 40, the control signals are sent to various monitoring subsystems 50 in the transformer substation, so that linkage control is performed on various monitoring subsystems 50.
In the present embodiment, as shown in fig. 3, the station-side processing unit 10 is communicatively connected to the environmental data acquisition unit 20, the video terminal 30, and the protocol conversion unit 40 through the first switch, respectively.
In the substation video environment monitoring system of this embodiment, an original integrated system that integrates functions such as communication control, data acquisition, protocol conversion and the like with a video processing unit as a center is divided into several independent units such as a station-side processing unit 10, an environmental data acquisition unit 20, a video terminal 30, and a protocol conversion unit 40, so that the reliability of the system is improved, and integrated linkage of various monitoring subsystems 50 is also realized. Meanwhile, the station end processing unit 10, the environmental data acquisition unit 20, the video terminal 30 and the protocol conversion unit 40 can be configured according to actual engineering requirements, the expansion is convenient, and the problems that the existing transformer station video environment monitoring system is low in reliability and incomplete in linkage function due to the fact that the video processing unit is used as the center, and the expansion is inconvenient when a newly-added system is accessed are solved.
Referring to fig. 2, in one embodiment, the station-side processing unit 10 includes a station-side server 11, a main communication controller 12 and a redundant communication controller 13, and the main communication controller 12 and the redundant communication controller 13 are connected to the station-side server 11 and the master station, respectively. The main communication controller 12 and the redundant communication controller 13 are mutually standby, and both are configured to process the environmental data and the video data when in a working state, send a processing result to the master station, receive a control signal fed back by the master station, and switch one of the main communication controller 12 and the redundant communication controller 13 to the working state when one of the main communication controller 12 and the redundant communication controller 13 fails.
In this embodiment, each communication controller of the station-side processing unit 10 is configured redundantly in a master-slave mode, and is responsible for communication and control with the substation area-level master station and the station-side device, and linkage with related information. When the system works normally, only one communication controller works, and the other communication controller is in a hot standby state. When the working communication controller fails, the other communication controller is immediately and seamlessly switched to a working state, processes the environmental data and the video data, sends a processing result to the master station, and receives a control signal fed back by the master station. Therefore, the reliability of the transformer substation video environment monitoring system is greatly improved.
Referring to fig. 3, in one embodiment, the primary communication controller 12 and the redundant communication controller 13 are interconnected by a heartbeat line and are communicatively coupled to the primary station via the first switch and the router, respectively. In addition, the environmental data collection unit 20, the video terminal 30 and the protocol conversion unit 40 are respectively connected in communication with the main communication controller 12 and the redundant communication controller 13 through the first switch.
Referring to fig. 3, in an embodiment, the station-side processing unit 10 is connected to the first switch through a network or an optical cable of IEC61850 protocol, and the first switch is connected to the environment data collecting unit 20, the video terminal 30 and the protocol converting unit 40 through a network or an optical cable of IEC61850 protocol.
Referring to fig. 3, in one embodiment, the environmental data collection unit 20 is connected to each sensor of the substation through a cable.
In this embodiment, the analog quantity (for example, 4 to 20mA analog quantity), the input quantity and the output control quantity acquired by each sensor of the substation are all realized by the environmental data acquisition unit 20.
Referring to fig. 3, in an embodiment, the station-side processing unit 10 is further configured to send a control signal to the video terminal 30 after receiving the linkage information. The linkage information includes a target linkage position, and the control signal is used to control the video terminal 30 at the target linkage position to acquire video data of the target linkage position.
The linkage information is information obtained after all information (including environmental data, audio information, various monitoring subsystem alarm information and I-area and II-area alarm information) of the transformer substation is subjected to logic processing. On the basis of centralized monitoring of the environmental data acquisition unit 20, the video terminal 30 and the station end processing unit 10, the video environment monitoring system of the transformer substation can automatically send a command according to linkage information to be linked with a light control system, an access control system, a heating and ventilation control system and the like, so that control over light, access control, heating and ventilation equipment and the like is realized, or a fan and the like are directly controlled through the environmental data acquisition unit 20, and the linkage with the video terminal 30 and an inspection robot is realized, a preset position of the related video terminal 30 is called or the inspection robot is driven to a corresponding position for inspection, and the reliability of operation of the transformer substation is improved.
In this embodiment, the station-side processing unit 10 stores a preset bit association table of the linkage information and the video terminal 30. Referring to fig. 4, after the station-side processing unit 10 receives the linkage information, the communication controller of the station-side processing unit 10 determines a target linkage position corresponding to the linkage information, queries a preset position association table of the linkage information and all video terminals 30, and then directly calls the video terminal 30 at the target linkage position, so that the video terminal 30 acquires corresponding video data, thereby implementing video monitoring of the linkage information association device.
Referring to fig. 3, in a certain embodiment, the substation video environment monitoring system further includes a robot inspection subsystem 60, and the robot inspection subsystem 60 is connected to the station-side processing unit 10. The station-side processing unit 10 is further configured to send a control signal to the robot inspection subsystem 60 after receiving the linkage information. The linkage information includes a target linkage position, and the control signal is used for controlling the robot inspection subsystem 60 to drive the inspection robot to the target linkage position for inspection.
The station-side processing unit 10 stores linkage information and an inspection path association table of the inspection robot. Referring to fig. 4, after the station-side processing unit 10 receives the linkage information, the communication controller of the station-side processing unit 10 determines a target linkage position corresponding to the linkage information, queries the linkage information and the routing inspection path association table of the routing inspection robot, and then directly drives the routing inspection robot to the target linkage position of the corresponding routing inspection path, so that the routing inspection robot inspects the target linkage position, thereby implementing routing inspection monitoring of the linkage information association device.
Therefore, the integrated linkage of the transformer substation video environment monitoring system and the transformer substation inspection robot is realized, the current situation that the transformer substation inspection robot does not participate in linkage is changed, and the mutual complement of the transformer substation video monitoring and the inspection robot in the linkage aspect is realized.
In one embodiment, the video terminal 30 and the robot inspection subsystem 60, both of which have the IEC61850 protocol, are directly connected to the station-side processing unit 10, wherein a network cable can be used in a short distance, and an optical fiber can be used in a long distance, so that information collection, control and linkage are realized.
Referring to fig. 3, in an embodiment, the video terminal 30 includes a plurality of network cameras and a plurality of local storage terminals, and the plurality of local storage terminals are configured to store video data collected by the corresponding plurality of network cameras.
In this embodiment, the network camera includes an electrical interface network camera and an optical interface network camera, such as an intelligent network high-speed dome, a network medium-speed dome, a network fixed camera, or a network high-definition camera.
The local storage terminal is a flash Memory (SD Card for short), and when the network fails occasionally, the video data collected by the network camera can be stored in the corresponding local storage terminal, so as to prevent the video data from being lost. When the network is normal, the video data is sent to the station-side processing unit 10. Thus, the reliability of the system is improved.
Referring to fig. 3, in one embodiment, the system further includes an audio capturing device 31, where the audio capturing device 31 is connected to the webcam and is used to capture audio of an environment where the webcam is located.
The network camera is provided with one or more audio acquisition devices 31 as required to acquire audio of the environment in which the network camera is located. Therefore, the operation of the field device, the collection of the place sound and the playing of the audio in emergency are realized.
In one embodiment, the audio capture device 31 comprises a microphone.
Referring to fig. 3, in one embodiment, the system further includes an audio output device 32, and the audio output device 32 is connected to the network camera and configured to output audio in an environment where the network camera is located.
The webcam is configured with one or more audio output devices 32 as needed to provide audio output in the environment of the webcam.
In one embodiment, audio output device 32 includes a speaker.
In one embodiment, the network camera comprises a switching value input/output interface, and the switching value input/output interface is connected with at least part of sensors in the transformer substation. The plurality of local storage terminals are also used for storing at least part of the substation environment data collected by the sensors.
In the prior art, when the switching value of system access is more, the cable length is large, and the construction consumables and the workload are increased. In addition, the reliability is low due to the fact that the cable path of part of the switching value is too long, the cable amount is large, and interference is easy to exist. In addition, because the differences of the analog quantity, the switching quantity, the video terminals 30 and the like required to be accessed by each transformer substation are large, some analog quantities or switching quantities are large, some video terminals 30 are few, some video terminals 30 are many, and the analog quantity and the switching quantity are very few, the station-side processing unit 10 is easily increased due to the shortage of one type of interfaces, and the other type of interfaces cause great spare waste.
In this embodiment, the access station end processing unit 10 is adopted for part of the close-distance input and output switching values, and the local access network camera is adopted for part of the long-distance input and output switching values, so that the length of the cable is shortened, the cable amount is saved, the interference of the electromagnetic field of the transformer substation on the signal is reduced, and the linkage reliability can be further improved.
In addition, the network camera may also be connected to a part of sensors, such as an infrared correlation device and a wind turbine control device shown in fig. 3, and the environmental data of the substation, such as the switching value, collected by the part of sensors may also be stored in a local storage terminal.
Referring to fig. 3, in one embodiment, various monitoring subsystems 50 are connected to the protocol conversion unit 40 through a serial interface.
In this embodiment, the serial interface includes RS232, RS422, or RS 485.
In one embodiment, each monitoring subsystem 50 is connected to the protocol conversion unit 40 by using a MODBUS protocol.
In this embodiment, all kinds of monitoring subsystems 50 adopt the MODBUS stipulation to be connected with stipulation converting unit 40, and do not adopt all kinds of monitoring subsystems 50 of IEC61850 stipulations, like subsystem such as fire alarm, light control, warm logical control, SF6 monitoring, fence, entrance guard adopt the MODBUS stipulation to insert stipulation converting unit 40 after through RS485, access station end processing unit 10. Compared to the IEC61850 protocol, MODBUS protocol has public publication and no copyright requirements, is easy to deploy and maintain, and has no restrictions for the vendor to modify bits or bytes locally to the mobile. Therefore, various monitoring subsystems 50 are connected with the protocol conversion unit 40 by adopting an MODBUS protocol, and the expansion is more convenient.
Referring to fig. 3, in one embodiment, the video environment monitoring system further includes a zone I service and a zone II service. The area I service and the area II service are both connected with the protocol conversion unit 40 through serial interfaces, and are separated by a firewall.
The I area service comprises an I area telecontrol device and an I area acquisition device. The I area acquisition device is used for acquiring I area data and sending the I area data to the I area telecontrol device, the I area telecontrol device is used for sending the I area data to the station end processing unit 10 through the protocol conversion unit 40, and the station end processing unit 10 is used for realizing linkage with the video terminal 30 and the inspection robot according to the I area data. The II area service comprises a II area telecontrol device and a II area acquisition device. The II area acquisition device is used for acquiring II area data and sending the II area data to the II area telecontrol device, the II area telecontrol device is used for sending the II area data to the station end processing unit 10 through the protocol conversion unit 40, and the station end processing unit 10 is used for realizing linkage with the video terminal 30 and the inspection robot according to the II area data.
In the prior art, the linkage of I, II area services such as protection monitoring and online monitoring is realized through network security equipment such as a forward isolation device. However, network devices such as the forward isolation device are expensive and complex in configuration, and comprehensive consideration of the actual operating conditions of the substation finds that data information to be sent needs to be filtered by a network firewall and the forward isolation device, the protection technology adopting the network firewall is complex and still has certain safety risks, and the forward isolation device is used to block the logical connection of the TCP network, so that the delay of data is increased, and the real-time performance and reliability of data transmission are affected.
In this embodiment, both the I-zone service and the II-zone service include a telecontrol device.
The I district telemechanical device is connected to the second switch through the net twine of IEC61850 stipulation, and the second switch is connected to I district collection system through the net twine of IEC61850 stipulation again. The I district collection system includes protection device, measurement and control device etc. for gather I district data, and send I district data to I district telecontrol equipment through the second switch, I district telecontrol equipment sends to protocol conversion unit 40 through serial interface again, I district data is after the 40 protocol conversions of protocol conversion unit, transmit to station end processing unit 10 through first switch, station end processing unit 10 is handled I district data, realize and patrol and examine the robot linkage with video terminal 30 according to I district data.
The telecontrol device in II district is connected to the third switch through the net twine of IEC61850 stipulation, and the third switch is connected to II district collection system through the net twine of IEC61850 stipulation again. II district collection system includes transformer on-line monitoring device, arrester on-line monitoring device, circuit breaker on-line monitoring device, GIS on-line monitoring device etc, be used for gathering II district data, and send II district data to II district telecontrol equipment through the third switch, II district telecontrol equipment sends to protocol conversion unit 40 through serial interface again, II district data is after the conversion of protocol conversion unit 40 protocol, transmit to station end processing unit 10 through first switch, station end processing unit 10 handles II district data, realize reaching the robot linkage of patrolling and examining with video terminal 30 according to II district data.
Thus, high-reliability linkage of services in the I, II transformer substation area is achieved at low cost, and safety risks caused by the use of expensive forward isolation devices are avoided.
In this embodiment, the serial interface includes RS232, RS422, or RS 485.
Referring to fig. 3, in one embodiment, the I-zone service includes a plurality of I-zone telecontrol devices, and the I-zone telecontrol devices are all connected to the protocol conversion unit 40 through the channel switching device.
The channel switching device (SMC) is a product which solves the problem of mutual conversion of multiple serial communication modes and multiple switching modes between two channels according to the practical application requirements of signal acquisition sites in communication network systems of current power, telecommunication and the like.
In this embodiment, as shown in fig. 3, the I-zone service is accessed to the channel switching device through the DL451-91 protocol by two duplexed sets of I-zone telecontrol devices (I-zone telecontrol device 1 and I-zone telecontrol device 2), and the channel switching device is accessed to the protocol conversion unit 40. The channels of the I-zone telecontrol devices are switched by the channel switching device, so that the normal communication connection between the I-zone telecontrol devices and the protocol conversion unit 40 is ensured.
In one embodiment, the channel switching device of the I-zone service and the zone II telecontrol device of the zone II service are respectively connected with the protocol conversion unit 40 by using DL451-91 protocols.
Referring to fig. 3, in one embodiment, the system further includes a storage unit 15. The storage unit 15 is connected to the environmental data acquisition unit 20, the video terminal 30 and the protocol conversion unit 40, and is used for storing environmental data, video data and monitoring data of various monitoring subsystems 50.
In this embodiment, the storage unit 15 is a network storage supporting a hot plug function and complying with the storage management interface standard (SMI-S), and supports raid0, raid1, raid5, and raid 6. The environmental data acquisition unit 20, the video terminal 30 and the protocol conversion unit 40 are respectively connected with the storage unit 15 through a first switch in a communication way. The storage unit 15 stores video data, environmental data, and monitoring data of various monitoring subsystems 50 by using IP network equipment.
In one embodiment, the number of the storage units 15 is plural. As shown in fig. 3, the number of the memory cells 15 is N, and N is 2 or more.
The transformer substation video environment monitoring system provided by the embodiment of the invention has the following beneficial effects:
(1) the original functions of communication control, information acquisition, protocol conversion and the like of all integrated video processing units are realized by a plurality of independent devices such as a station-side processing unit 10 (a communication controller), an environmental data acquisition unit 20, a protocol conversion unit 40 and the like, so that data acquisition and communication of all-station environmental data and related auxiliary systems are realized.
(2) The communication control of the station-side processing unit 10 adopts a redundant configuration scheme, the redundant communication controllers are interconnected through a heartbeat line, and when one device fails, the other device automatically takes over the communication, so that the reliability of the system is improved.
(3) The scheme that the switching value input/output and the audio input/output are accessed locally through the video terminal 30 is adopted, so that the length of a cable is shortened, the reliability is improved, the video linkage can be realized when the network fails occasionally, and the video and switching value alarm information is stored in the local storage terminal of the video terminal 30.
(4) By adopting the high-reliability I, II area service linkage scheme without a forward isolation network device, the high-reliability linkage of the service in the I, II area of the transformer substation is realized at low cost, and the safety risk caused by using an expensive forward isolation device is avoided.
(5) By adopting an integrated linkage scheme of the transformer substation video environment monitoring system and the transformer substation inspection robot and combining data acquired by the transformer substation video environment monitoring system, linkage control of each subsystem and the video inspection robot is realized, and linkage among standby operation, disconnecting link deflection and fault alarm of the video inspection robot and the total station I, II is realized.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A video environment monitoring system of a transformer substation is characterized by comprising a station end processing unit, an environment data acquisition unit, a video terminal and a protocol conversion unit; the station end processing unit is respectively connected with the environmental data acquisition unit, the video terminal and the protocol conversion unit, and is connected with a main station of a transformer substation;
the environment data acquisition unit is connected with each sensor of the transformer substation and is used for transmitting the transformer substation environment data acquired by the sensors to the station end processing unit; the environmental data includes wind speed, temperature and humidity;
the video terminal is used for transmitting the collected video data of the transformer substation to the station end processing unit;
the station end processing unit is used for processing the environment data and the video data, sending a processing result to the master station and receiving a control signal fed back by the master station;
the protocol conversion unit is used for converting the control signals sent by the station end processing unit by protocols and sending the control signals after protocol conversion to various monitoring subsystems installed in a transformer substation; the protocol converts the monitoring data sent by the various monitoring subsystems, and sends the monitoring data after protocol conversion to the station end processing unit; the various monitoring subsystems comprise a fire alarm system, a light control system, an access control system, a heating and ventilation control system and a sulfur hexafluoride monitoring system.
2. The substation video environment monitoring system according to claim 1, wherein the substation-side processing unit comprises a substation-side server, a main communication controller and a redundant communication controller, and the main communication controller and the redundant communication controller are respectively connected with the substation-side server and the master station;
the main communication controller and the redundant communication controller are mutually standby, and are used for processing the environmental data and the video data when in a working state, sending a processing result to the main station, receiving a control signal fed back by the main station, and switching the other one of the main communication controller and the redundant communication controller to the working state when one of the main communication controller and the redundant communication controller fails.
3. The substation video environment monitoring system of claim 1,
the station end processing unit is also used for sending a control signal to the video terminal after receiving the linkage information; the linkage information comprises a target linkage position, and the control signal is used for controlling the video terminal at the target linkage position to acquire video data of the target linkage position.
4. The substation video environment monitoring system according to claim 1, further comprising a robot patrol sub-system connected to the station-side processing unit;
the station end processing unit is also used for sending a control signal to the robot inspection subsystem after receiving the linkage information; the linkage information comprises a target linkage position, and the control signal is used for controlling the robot inspection subsystem to drive the inspection robot to the target linkage position for inspection.
5. The substation video environment monitoring system according to claim 1, wherein the video terminal comprises a plurality of network cameras and a plurality of local storage terminals, and the plurality of local storage terminals are configured to store video data collected by the corresponding plurality of network cameras.
6. The substation video environment monitoring system of claim 5, further comprising:
the audio acquisition device is connected with the network camera and is used for acquiring the audio of the environment where the network camera is located;
or the audio output device is connected with the network camera and used for outputting audio in the environment where the network camera is located.
7. The substation video environment monitoring system according to claim 5, wherein the network camera comprises a switching value input and output interface, and the switching value input and output interface is connected with at least part of sensors in the substation; the plurality of local storage terminals are also used for storing at least part of the substation environment data collected by the sensors.
8. The substation video environment monitoring system according to any one of claims 1 to 7, wherein the various types of monitoring subsystems are connected to the protocol conversion unit through a serial interface.
9. The substation video environment monitoring system according to any one of claims 1 to 7, further comprising a region I service and a region II service, wherein the region I service and the region II service are both connected to the protocol conversion unit through serial interfaces, and the region I service and the region II service are separated by a firewall;
the I area service comprises an I area telecontrol device and an I area acquisition device, the I area acquisition device is used for acquiring I area data and transmitting the I area data to the I area telecontrol device, the I area telecontrol device is used for transmitting the I area data to the station end processing unit through the protocol conversion unit, and the station end processing unit is used for realizing linkage with the video terminal and the inspection robot according to the I area data;
the service of the II area comprises a remote control device of the II area and a collection device of the II area, wherein the collection device of the II area is used for collecting data of the II area and sending the data to the remote control device of the II area, the remote control device of the II area is used for sending the data of the II area to the station end processing unit through the protocol conversion unit, and the station end processing unit is used for realizing the linkage of the video terminal and the inspection robot according to the data of the II area.
10. The substation video environment monitoring system according to any one of claims 1 to 7, further comprising a storage unit;
the storage unit is respectively connected with the environmental data acquisition unit, the video terminal and the protocol conversion unit and is used for storing the environmental data, the video data and the monitoring data of various monitoring subsystems.
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